2019 Assessment of Blackspotted and Rougheye Rockfish Stock Complex in the Bering Sea and Aleutian Islands

In 2018, scientists conducted a BSAI blackspotted and rougheye rockfish complex full assessment (PDF, 88 pages). A partial assessment is conducted this year by revising the recent catch data and re-running the projection model using the results from the previous full assessment as a starting point for the Aleutian Islands portion of the stock, with the eastern Bering Sea portion assessed with Tier 5 methods applied to survey biomass estimates. Therefore, this update does not incorporate any changes to the 2018 assessment methodology, but does update the catch estimates for 2018–2020 and provides an estimated catch for 2021. The partial assessment also includes estimates of catch/biomass (i.e., exploitation rates), using estimated total biomass.